The Samsung Slim internal DVD Writer was engineered for ultra-compatibility, including Windows 7. Buffer Under Run Errors result from writing speed exceeding that of the data transfer speed - a common frustrating occurrence during high speed writing. But Bufffer Under Run technology prevents theses obstacles from occurring while enabling PC multitasking. Manufactured with lead-free soldering technology and excluding harmful materials harmful to the human body or the environment such as, Pb, Cd, Cr + 6, Hg, PBBs and PBDE, the Slim DVD Writer is one of Samsung's many eco-products designed to help you lead an environmentally friendly lifestyle. The Samsung Slim internal DVD Writer keeps you at the cutting edge by continually supporting new media and automatically upgrading to the latest firmware versions through your Internet connection.